Teeth whitening strip, 3-44%HP, CE approval OEM service paypal ... , which are more comfortable that the conventional ones.3. The dry whitestrips could withstand the spittle, ensuring ... 2-hour rapid whitestrips and improved whitestrips. Main Ingredient:3%-12% Hydrogen Peroxide Individual Packaging: one piece strips ... buyers would pay for samples shipping cost.the sample strip is based on 6%HP, we may offer ...